X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=src%2Fcore%2Fao_data.h;h=5a232885173b368c0a7ee9a6cab7a97a12adc5a7;hp=339afe69882602e3730ff66543236b9f17e644b7;hb=08143a922fe27bc50a19924f46538f9476ab5fd1;hpb=ba99630f33440b993c69830856d2a7741ffdef71

diff --git a/src/core/ao_data.h b/src/core/ao_data.h
index 339afe69..5a232885 100644
--- a/src/core/ao_data.h
+++ b/src/core/ao_data.h
@@ -18,6 +18,8 @@
 #ifndef _AO_DATA_H_
 #define _AO_DATA_H_
 
+#define GRAVITY 9.80665
+
 #if HAS_ADC
 #define AO_DATA_ADC	(1 << 0)
 #else
@@ -300,8 +302,8 @@ typedef int16_t accel_t;
 
 #define HAS_GYRO	1
 
-typedef int16_t	gyro_t;
-typedef int32_t angle_t;
+typedef int16_t	gyro_t;		/* in raw sample units */
+typedef int16_t angle_t;	/* in degrees */
 
 /* Y axis is aligned with the direction of motion (along) */
 /* X axis is aligned in the other board axis (across) */